Home / 278,510.64-384,237.03-157,624.21

Finding the Fourth Proportional to 278,510.64, 384,237.03 and 157,624.21

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Solution

The fourth proportional to 278,510.64, 384,237.03 and 157,624.21 is: 217,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,510.64 : 384,237.03 = 157,624.21 : x
  2. Step 2: Convert to fraction form
    278,510.64/384,237.03 = 157,624.21/x
  3. Step 3: Cross multiply
    278,510.64x = 384,237.03 × 157,624.21
  4. Step 4: Simplify right side
    278,510.64x = 60,565,058,306.50
  5. Step 5: Solve for x
    x = 60,565,058,306.50/278,510.64
  6. Step 6: Final answer
    x = 217,460.48

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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.