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Finding the Fourth Proportional to 403,502.64, 556,666.49 and 240,126.45

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Solution

The fourth proportional to 403,502.64, 556,666.49 and 240,126.45 is: 331,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,502.64 : 556,666.49 = 240,126.45 : x
  2. Step 2: Convert to fraction form
    403,502.64/556,666.49 = 240,126.45/x
  3. Step 3: Cross multiply
    403,502.64x = 556,666.49 × 240,126.45
  4. Step 4: Simplify right side
    403,502.64x = 133,670,346,877.03
  5. Step 5: Solve for x
    x = 133,670,346,877.03/403,502.64
  6. Step 6: Final answer
    x = 331,275.02

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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.