Home / 278,460.60-384,275.98-151,136.20

Finding the Fourth Proportional to 278,460.60, 384,275.98 and 151,136.20

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Solution

The fourth proportional to 278,460.60, 384,275.98 and 151,136.20 is: 208,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,460.60 : 384,275.98 = 151,136.20 : x
  2. Step 2: Convert to fraction form
    278,460.60/384,275.98 = 151,136.20/x
  3. Step 3: Cross multiply
    278,460.60x = 384,275.98 × 151,136.20
  4. Step 4: Simplify right side
    278,460.60x = 58,078,011,368.48
  5. Step 5: Solve for x
    x = 58,078,011,368.48/278,460.60
  6. Step 6: Final answer
    x = 208,568.15

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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.