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Finding the Fourth Proportional to 385,703.35, 576,209.48 and 249,659.19

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Solution

The fourth proportional to 385,703.35, 576,209.48 and 249,659.19 is: 372,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,703.35 : 576,209.48 = 249,659.19 : x
  2. Step 2: Convert to fraction form
    385,703.35/576,209.48 = 249,659.19/x
  3. Step 3: Cross multiply
    385,703.35x = 576,209.48 × 249,659.19
  4. Step 4: Simplify right side
    385,703.35x = 143,855,992,047.12
  5. Step 5: Solve for x
    x = 143,855,992,047.12/385,703.35
  6. Step 6: Final answer
    x = 372,970.56

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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.