Home / 211,500.02-291,869.25-130,911.50

Finding the Fourth Proportional to 211,500.02, 291,869.25 and 130,911.50

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Solution

The fourth proportional to 211,500.02, 291,869.25 and 130,911.50 is: 180,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,500.02 : 291,869.25 = 130,911.50 : x
  2. Step 2: Convert to fraction form
    211,500.02/291,869.25 = 130,911.50/x
  3. Step 3: Cross multiply
    211,500.02x = 291,869.25 × 130,911.50
  4. Step 4: Simplify right side
    211,500.02x = 38,209,041,321.38
  5. Step 5: Solve for x
    x = 38,209,041,321.38/211,500.02
  6. Step 6: Final answer
    x = 180,657.39

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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.