Home / 288,042.16-397,498.08-160,717.72

Finding the Fourth Proportional to 288,042.16, 397,498.08 and 160,717.72

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Solution

The fourth proportional to 288,042.16, 397,498.08 and 160,717.72 is: 221,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,042.16 : 397,498.08 = 160,717.72 : x
  2. Step 2: Convert to fraction form
    288,042.16/397,498.08 = 160,717.72/x
  3. Step 3: Cross multiply
    288,042.16x = 397,498.08 × 160,717.72
  4. Step 4: Simplify right side
    288,042.16x = 63,884,985,121.98
  5. Step 5: Solve for x
    x = 63,884,985,121.98/288,042.16
  6. Step 6: Final answer
    x = 221,790.40

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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.