Home / 287,695.10-397,024.47-160,356.98

Finding the Fourth Proportional to 287,695.10, 397,024.47 and 160,356.98

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Solution

The fourth proportional to 287,695.10, 397,024.47 and 160,356.98 is: 221,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,695.10 : 397,024.47 = 160,356.98 : x
  2. Step 2: Convert to fraction form
    287,695.10/397,024.47 = 160,356.98/x
  3. Step 3: Cross multiply
    287,695.10x = 397,024.47 × 160,356.98
  4. Step 4: Simplify right side
    287,695.10x = 63,665,644,995.30
  5. Step 5: Solve for x
    x = 63,665,644,995.30/287,695.10
  6. Step 6: Final answer
    x = 221,295.55

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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.