Home / 425,931.90-587,867.67-256,220.70

Finding the Fourth Proportional to 425,931.90, 587,867.67 and 256,220.70

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Solution

The fourth proportional to 425,931.90, 587,867.67 and 256,220.70 is: 353,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,931.90 : 587,867.67 = 256,220.70 : x
  2. Step 2: Convert to fraction form
    425,931.90/587,867.67 = 256,220.70/x
  3. Step 3: Cross multiply
    425,931.90x = 587,867.67 × 256,220.70
  4. Step 4: Simplify right side
    425,931.90x = 150,623,865,914.77
  5. Step 5: Solve for x
    x = 150,623,865,914.77/425,931.90
  6. Step 6: Final answer
    x = 353,633.68

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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.