Home / 313,680.74-470,520.16-89,041.36

Finding the Fourth Proportional to 313,680.74, 470,520.16 and 89,041.36

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Solution

The fourth proportional to 313,680.74, 470,520.16 and 89,041.36 is: 133,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,680.74 : 470,520.16 = 89,041.36 : x
  2. Step 2: Convert to fraction form
    313,680.74/470,520.16 = 89,041.36/x
  3. Step 3: Cross multiply
    313,680.74x = 470,520.16 × 89,041.36
  4. Step 4: Simplify right side
    313,680.74x = 41,895,754,437.14
  5. Step 5: Solve for x
    x = 41,895,754,437.14/313,680.74
  6. Step 6: Final answer
    x = 133,561.77

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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.