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Finding the Fourth Proportional to 356,403.70, 534,749.55 and 156,762.10

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Solution

The fourth proportional to 356,403.70, 534,749.55 and 156,762.10 is: 235,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,403.70 : 534,749.55 = 156,762.10 : x
  2. Step 2: Convert to fraction form
    356,403.70/534,749.55 = 156,762.10/x
  3. Step 3: Cross multiply
    356,403.70x = 534,749.55 × 156,762.10
  4. Step 4: Simplify right side
    356,403.70x = 83,828,462,432.06
  5. Step 5: Solve for x
    x = 83,828,462,432.06/356,403.70
  6. Step 6: Final answer
    x = 235,206.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.