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Finding the Fourth Proportional to 225,055.75, 310,430.62 and 144,355.45

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Solution

The fourth proportional to 225,055.75, 310,430.62 and 144,355.45 is: 199,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,055.75 : 310,430.62 = 144,355.45 : x
  2. Step 2: Convert to fraction form
    225,055.75/310,430.62 = 144,355.45/x
  3. Step 3: Cross multiply
    225,055.75x = 310,430.62 × 144,355.45
  4. Step 4: Simplify right side
    225,055.75x = 44,812,350,706.91
  5. Step 5: Solve for x
    x = 44,812,350,706.91/225,055.75
  6. Step 6: Final answer
    x = 199,116.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.