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Finding the Fourth Proportional to 374,502.59, 516,747.13 and 221,547.23

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Solution

The fourth proportional to 374,502.59, 516,747.13 and 221,547.23 is: 305,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,502.59 : 516,747.13 = 221,547.23 : x
  2. Step 2: Convert to fraction form
    374,502.59/516,747.13 = 221,547.23/x
  3. Step 3: Cross multiply
    374,502.59x = 516,747.13 × 221,547.23
  4. Step 4: Simplify right side
    374,502.59x = 114,483,892,678.21
  5. Step 5: Solve for x
    x = 114,483,892,678.21/374,502.59
  6. Step 6: Final answer
    x = 305,695.87

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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.