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Finding the Fourth Proportional to 553,377.40, 829,952.70 and 153,917.80

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Solution

The fourth proportional to 553,377.40, 829,952.70 and 153,917.80 is: 230,845.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,377.40 : 829,952.70 = 153,917.80 : x
  2. Step 2: Convert to fraction form
    553,377.40/829,952.70 = 153,917.80/x
  3. Step 3: Cross multiply
    553,377.40x = 829,952.70 × 153,917.80
  4. Step 4: Simplify right side
    553,377.40x = 127,744,493,688.06
  5. Step 5: Solve for x
    x = 127,744,493,688.06/553,377.40
  6. Step 6: Final answer
    x = 230,845.16

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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.