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Finding the Fourth Proportional to 385,710.39, 576,220.02 and 249,666.23

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Solution

The fourth proportional to 385,710.39, 576,220.02 and 249,666.23 is: 372,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,710.39 : 576,220.02 = 249,666.23 : x
  2. Step 2: Convert to fraction form
    385,710.39/576,220.02 = 249,666.23/x
  3. Step 3: Cross multiply
    385,710.39x = 576,220.02 × 249,666.23
  4. Step 4: Simplify right side
    385,710.39x = 143,862,677,162.83
  5. Step 5: Solve for x
    x = 143,862,677,162.83/385,710.39
  6. Step 6: Final answer
    x = 372,981.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.