Home / 255,253.04-382,921.02-86,788.40

Finding the Fourth Proportional to 255,253.04, 382,921.02 and 86,788.40

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Solution

The fourth proportional to 255,253.04, 382,921.02 and 86,788.40 is: 130,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,253.04 : 382,921.02 = 86,788.40 : x
  2. Step 2: Convert to fraction form
    255,253.04/382,921.02 = 86,788.40/x
  3. Step 3: Cross multiply
    255,253.04x = 382,921.02 × 86,788.40
  4. Step 4: Simplify right side
    255,253.04x = 33,233,102,652.17
  5. Step 5: Solve for x
    x = 33,233,102,652.17/255,253.04
  6. Step 6: Final answer
    x = 130,196.70

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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.