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Finding the Fourth Proportional to 224,842.71, 310,300.63 and 128,050.66

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Solution

The fourth proportional to 224,842.71, 310,300.63 and 128,050.66 is: 176,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,842.71 : 310,300.63 = 128,050.66 : x
  2. Step 2: Convert to fraction form
    224,842.71/310,300.63 = 128,050.66/x
  3. Step 3: Cross multiply
    224,842.71x = 310,300.63 × 128,050.66
  4. Step 4: Simplify right side
    224,842.71x = 39,734,199,374.04
  5. Step 5: Solve for x
    x = 39,734,199,374.04/224,842.71
  6. Step 6: Final answer
    x = 176,719.98

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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.