Home / 385,254.14-531,651.30-215,488.28

Finding the Fourth Proportional to 385,254.14, 531,651.30 and 215,488.28

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Solution

The fourth proportional to 385,254.14, 531,651.30 and 215,488.28 is: 297,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,254.14 : 531,651.30 = 215,488.28 : x
  2. Step 2: Convert to fraction form
    385,254.14/531,651.30 = 215,488.28/x
  3. Step 3: Cross multiply
    385,254.14x = 531,651.30 × 215,488.28
  4. Step 4: Simplify right side
    385,254.14x = 114,564,624,196.76
  5. Step 5: Solve for x
    x = 114,564,624,196.76/385,254.14
  6. Step 6: Final answer
    x = 297,374.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.