Home / 511,264.80-766,897.20-137,325.60

Finding the Fourth Proportional to 511,264.80, 766,897.20 and 137,325.60

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Solution

The fourth proportional to 511,264.80, 766,897.20 and 137,325.60 is: 205,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,264.80 : 766,897.20 = 137,325.60 : x
  2. Step 2: Convert to fraction form
    511,264.80/766,897.20 = 137,325.60/x
  3. Step 3: Cross multiply
    511,264.80x = 766,897.20 × 137,325.60
  4. Step 4: Simplify right side
    511,264.80x = 105,314,618,128.32
  5. Step 5: Solve for x
    x = 105,314,618,128.32/511,264.80
  6. Step 6: Final answer
    x = 205,988.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.