Home / 288,870.74-433,317.63-89,173.46

Finding the Fourth Proportional to 288,870.74, 433,317.63 and 89,173.46

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Solution

The fourth proportional to 288,870.74, 433,317.63 and 89,173.46 is: 133,763.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,870.74 : 433,317.63 = 89,173.46 : x
  2. Step 2: Convert to fraction form
    288,870.74/433,317.63 = 89,173.46/x
  3. Step 3: Cross multiply
    288,870.74x = 433,317.63 × 89,173.46
  4. Step 4: Simplify right side
    288,870.74x = 38,640,432,346.10
  5. Step 5: Solve for x
    x = 38,640,432,346.10/288,870.74
  6. Step 6: Final answer
    x = 133,763.75

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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.