Home / 385,295.16-531,727.98-215,519.16

Finding the Fourth Proportional to 385,295.16, 531,727.98 and 215,519.16

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Solution

The fourth proportional to 385,295.16, 531,727.98 and 215,519.16 is: 297,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,295.16 : 531,727.98 = 215,519.16 : x
  2. Step 2: Convert to fraction form
    385,295.16/531,727.98 = 215,519.16/x
  3. Step 3: Cross multiply
    385,295.16x = 531,727.98 × 215,519.16
  4. Step 4: Simplify right side
    385,295.16x = 114,597,567,598.10
  5. Step 5: Solve for x
    x = 114,597,567,598.10/385,295.16
  6. Step 6: Final answer
    x = 297,428.00

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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.