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Finding the Fourth Proportional to 607,435, 911,206.98 and 158,159.76

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Solution

The fourth proportional to 607,435, 911,206.98 and 158,159.76 is: 237,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,435 : 911,206.98 = 158,159.76 : x
  2. Step 2: Convert to fraction form
    607,435/911,206.98 = 158,159.76/x
  3. Step 3: Cross multiply
    607,435x = 911,206.98 × 158,159.76
  4. Step 4: Simplify right side
    607,435x = 144,116,276,476.33
  5. Step 5: Solve for x
    x = 144,116,276,476.33/607,435
  6. Step 6: Final answer
    x = 237,253.82

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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.