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Finding the Fourth Proportional to 368,748, 553,337.10 and 155,502.72

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Solution

The fourth proportional to 368,748, 553,337.10 and 155,502.72 is: 233,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,748 : 553,337.10 = 155,502.72 : x
  2. Step 2: Convert to fraction form
    368,748/553,337.10 = 155,502.72/x
  3. Step 3: Cross multiply
    368,748x = 553,337.10 × 155,502.72
  4. Step 4: Simplify right side
    368,748x = 86,045,424,126.91
  5. Step 5: Solve for x
    x = 86,045,424,126.91/368,748
  6. Step 6: Final answer
    x = 233,344.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.