Home / 278,854.02-384,817.53-158,018.31

Finding the Fourth Proportional to 278,854.02, 384,817.53 and 158,018.31

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Solution

The fourth proportional to 278,854.02, 384,817.53 and 158,018.31 is: 218,064.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,854.02 : 384,817.53 = 158,018.31 : x
  2. Step 2: Convert to fraction form
    278,854.02/384,817.53 = 158,018.31/x
  3. Step 3: Cross multiply
    278,854.02x = 384,817.53 × 158,018.31
  4. Step 4: Simplify right side
    278,854.02x = 60,808,215,748.97
  5. Step 5: Solve for x
    x = 60,808,215,748.97/278,854.02
  6. Step 6: Final answer
    x = 218,064.69

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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.