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Finding the Fourth Proportional to 158,302.61, 218,490.59 and 145,535.57

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Solution

The fourth proportional to 158,302.61, 218,490.59 and 145,535.57 is: 200,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,302.61 : 218,490.59 = 145,535.57 : x
  2. Step 2: Convert to fraction form
    158,302.61/218,490.59 = 145,535.57/x
  3. Step 3: Cross multiply
    158,302.61x = 218,490.59 × 145,535.57
  4. Step 4: Simplify right side
    158,302.61x = 31,798,152,304.74
  5. Step 5: Solve for x
    x = 31,798,152,304.74/158,302.61
  6. Step 6: Final answer
    x = 200,869.42

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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.