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Finding the Fourth Proportional to 311,503.71, 429,875.30 and 168,263.74

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Solution

The fourth proportional to 311,503.71, 429,875.30 and 168,263.74 is: 232,204.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,503.71 : 429,875.30 = 168,263.74 : x
  2. Step 2: Convert to fraction form
    311,503.71/429,875.30 = 168,263.74/x
  3. Step 3: Cross multiply
    311,503.71x = 429,875.30 × 168,263.74
  4. Step 4: Simplify right side
    311,503.71x = 72,332,424,870.30
  5. Step 5: Solve for x
    x = 72,332,424,870.30/311,503.71
  6. Step 6: Final answer
    x = 232,204.06

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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.