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Finding the Fourth Proportional to 357,500.60, 493,230.76 and 202,430.76

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Solution

The fourth proportional to 357,500.60, 493,230.76 and 202,430.76 is: 279,286.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,500.60 : 493,230.76 = 202,430.76 : x
  2. Step 2: Convert to fraction form
    357,500.60/493,230.76 = 202,430.76/x
  3. Step 3: Cross multiply
    357,500.60x = 493,230.76 × 202,430.76
  4. Step 4: Simplify right side
    357,500.60x = 99,845,077,602.18
  5. Step 5: Solve for x
    x = 99,845,077,602.18/357,500.60
  6. Step 6: Final answer
    x = 279,286.46

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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.