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Finding the Fourth Proportional to 358,435.65, 537,654.88 and 145,207.59

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Solution

The fourth proportional to 358,435.65, 537,654.88 and 145,207.59 is: 217,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,435.65 : 537,654.88 = 145,207.59 : x
  2. Step 2: Convert to fraction form
    358,435.65/537,654.88 = 145,207.59/x
  3. Step 3: Cross multiply
    358,435.65x = 537,654.88 × 145,207.59
  4. Step 4: Simplify right side
    358,435.65x = 78,071,569,376.54
  5. Step 5: Solve for x
    x = 78,071,569,376.54/358,435.65
  6. Step 6: Final answer
    x = 217,811.95

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1.5x scale

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.