Home / 287,677.49-397,000.16-160,339.42

Finding the Fourth Proportional to 287,677.49, 397,000.16 and 160,339.42

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Solution

The fourth proportional to 287,677.49, 397,000.16 and 160,339.42 is: 221,271.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,677.49 : 397,000.16 = 160,339.42 : x
  2. Step 2: Convert to fraction form
    287,677.49/397,000.16 = 160,339.42/x
  3. Step 3: Cross multiply
    287,677.49x = 397,000.16 × 160,339.42
  4. Step 4: Simplify right side
    287,677.49x = 63,654,774,802.66
  5. Step 5: Solve for x
    x = 63,654,774,802.66/287,677.49
  6. Step 6: Final answer
    x = 221,271.31

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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.