Home / 288,691.02-433,036.26-128,725.74

Finding the Fourth Proportional to 288,691.02, 433,036.26 and 128,725.74

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Solution

The fourth proportional to 288,691.02, 433,036.26 and 128,725.74 is: 193,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,691.02 : 433,036.26 = 128,725.74 : x
  2. Step 2: Convert to fraction form
    288,691.02/433,036.26 = 128,725.74/x
  3. Step 3: Cross multiply
    288,691.02x = 433,036.26 × 128,725.74
  4. Step 4: Simplify right side
    288,691.02x = 55,742,913,015.33
  5. Step 5: Solve for x
    x = 55,742,913,015.33/288,691.02
  6. Step 6: Final answer
    x = 193,088.49

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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.