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Finding the Fourth Proportional to 155,506, 233,240.48 and 91,502.40

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Solution

The fourth proportional to 155,506, 233,240.48 and 91,502.40 is: 137,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,506 : 233,240.48 = 91,502.40 : x
  2. Step 2: Convert to fraction form
    155,506/233,240.48 = 91,502.40/x
  3. Step 3: Cross multiply
    155,506x = 233,240.48 × 91,502.40
  4. Step 4: Simplify right side
    155,506x = 21,342,063,697.15
  5. Step 5: Solve for x
    x = 21,342,063,697.15/155,506
  6. Step 6: Final answer
    x = 137,242.70

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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.