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Finding the Fourth Proportional to 312,000.21, 468,001.71 and 98,769.17

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Solution

The fourth proportional to 312,000.21, 468,001.71 and 98,769.17 is: 148,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,000.21 : 468,001.71 = 98,769.17 : x
  2. Step 2: Convert to fraction form
    312,000.21/468,001.71 = 98,769.17/x
  3. Step 3: Cross multiply
    312,000.21x = 468,001.71 × 98,769.17
  4. Step 4: Simplify right side
    312,000.21x = 46,224,141,625.29
  5. Step 5: Solve for x
    x = 46,224,141,625.29/312,000.21
  6. Step 6: Final answer
    x = 148,154.20

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1.5x scale

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.