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Finding the Fourth Proportional to 218,397.84, 301,342.53 and 127,736.11

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Solution

The fourth proportional to 218,397.84, 301,342.53 and 127,736.11 is: 176,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,397.84 : 301,342.53 = 127,736.11 : x
  2. Step 2: Convert to fraction form
    218,397.84/301,342.53 = 127,736.11/x
  3. Step 3: Cross multiply
    218,397.84x = 301,342.53 × 127,736.11
  4. Step 4: Simplify right side
    218,397.84x = 38,492,323,544.46
  5. Step 5: Solve for x
    x = 38,492,323,544.46/218,397.84
  6. Step 6: Final answer
    x = 176,248.64

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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.