Home / 280,136.67-386,591.40-152,814.93

Finding the Fourth Proportional to 280,136.67, 386,591.40 and 152,814.93

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Solution

The fourth proportional to 280,136.67, 386,591.40 and 152,814.93 is: 210,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,136.67 : 386,591.40 = 152,814.93 : x
  2. Step 2: Convert to fraction form
    280,136.67/386,591.40 = 152,814.93/x
  3. Step 3: Cross multiply
    280,136.67x = 386,591.40 × 152,814.93
  4. Step 4: Simplify right side
    280,136.67x = 59,076,937,729.60
  5. Step 5: Solve for x
    x = 59,076,937,729.60/280,136.67
  6. Step 6: Final answer
    x = 210,886.13

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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.