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Finding the Fourth Proportional to 453,428.40, 680,113.80 and 153,908.40

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Solution

The fourth proportional to 453,428.40, 680,113.80 and 153,908.40 is: 230,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,428.40 : 680,113.80 = 153,908.40 : x
  2. Step 2: Convert to fraction form
    453,428.40/680,113.80 = 153,908.40/x
  3. Step 3: Cross multiply
    453,428.40x = 680,113.80 × 153,908.40
  4. Step 4: Simplify right side
    453,428.40x = 104,675,226,775.92
  5. Step 5: Solve for x
    x = 104,675,226,775.92/453,428.40
  6. Step 6: Final answer
    x = 230,852.82

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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.