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Finding the Fourth Proportional to 288,483.41, 432,774.32 and 128,617.36

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Solution

The fourth proportional to 288,483.41, 432,774.32 and 128,617.36 is: 192,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,483.41 : 432,774.32 = 128,617.36 : x
  2. Step 2: Convert to fraction form
    288,483.41/432,774.32 = 128,617.36/x
  3. Step 3: Cross multiply
    288,483.41x = 432,774.32 × 128,617.36
  4. Step 4: Simplify right side
    288,483.41x = 55,662,290,514.20
  5. Step 5: Solve for x
    x = 55,662,290,514.20/288,483.41
  6. Step 6: Final answer
    x = 192,947.98

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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.