Home / 287,983.50-397,416.09-160,658.94

Finding the Fourth Proportional to 287,983.50, 397,416.09 and 160,658.94

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Solution

The fourth proportional to 287,983.50, 397,416.09 and 160,658.94 is: 221,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,983.50 : 397,416.09 = 160,658.94 : x
  2. Step 2: Convert to fraction form
    287,983.50/397,416.09 = 160,658.94/x
  3. Step 3: Cross multiply
    287,983.50x = 397,416.09 × 160,658.94
  4. Step 4: Simplify right side
    287,983.50x = 63,848,447,758.34
  5. Step 5: Solve for x
    x = 63,848,447,758.34/287,983.50
  6. Step 6: Final answer
    x = 221,708.70

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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.