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Finding the Fourth Proportional to 289,029.60, 433,590.84 and 89,303.04

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Solution

The fourth proportional to 289,029.60, 433,590.84 and 89,303.04 is: 133,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,029.60 : 433,590.84 = 89,303.04 : x
  2. Step 2: Convert to fraction form
    289,029.60/433,590.84 = 89,303.04/x
  3. Step 3: Cross multiply
    289,029.60x = 433,590.84 × 89,303.04
  4. Step 4: Simplify right side
    289,029.60x = 38,720,980,128.15
  5. Step 5: Solve for x
    x = 38,720,980,128.15/289,029.60
  6. Step 6: Final answer
    x = 133,968.91

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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.