Home / 288,045.15-397,500.62-160,720.35

Finding the Fourth Proportional to 288,045.15, 397,500.62 and 160,720.35

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Solution

The fourth proportional to 288,045.15, 397,500.62 and 160,720.35 is: 221,793.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,045.15 : 397,500.62 = 160,720.35 : x
  2. Step 2: Convert to fraction form
    288,045.15/397,500.62 = 160,720.35/x
  3. Step 3: Cross multiply
    288,045.15x = 397,500.62 × 160,720.35
  4. Step 4: Simplify right side
    288,045.15x = 63,886,437,968.02
  5. Step 5: Solve for x
    x = 63,886,437,968.02/288,045.15
  6. Step 6: Final answer
    x = 221,793.14

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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.