Home / 287,883.07-397,279.34-160,566.91

Finding the Fourth Proportional to 287,883.07, 397,279.34 and 160,566.91

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Solution

The fourth proportional to 287,883.07, 397,279.34 and 160,566.91 is: 221,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,883.07 : 397,279.34 = 160,566.91 : x
  2. Step 2: Convert to fraction form
    287,883.07/397,279.34 = 160,566.91/x
  3. Step 3: Cross multiply
    287,883.07x = 397,279.34 × 160,566.91
  4. Step 4: Simplify right side
    287,883.07x = 63,789,916,030.64
  5. Step 5: Solve for x
    x = 63,789,916,030.64/287,883.07
  6. Step 6: Final answer
    x = 221,582.73

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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.