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Finding the Fourth Proportional to 497,060.40, 745,007.40 and 212,750.40

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Solution

The fourth proportional to 497,060.40, 745,007.40 and 212,750.40 is: 318,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,060.40 : 745,007.40 = 212,750.40 : x
  2. Step 2: Convert to fraction form
    497,060.40/745,007.40 = 212,750.40/x
  3. Step 3: Cross multiply
    497,060.40x = 745,007.40 × 212,750.40
  4. Step 4: Simplify right side
    497,060.40x = 158,500,622,352.96
  5. Step 5: Solve for x
    x = 158,500,622,352.96/497,060.40
  6. Step 6: Final answer
    x = 318,875.98

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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.