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Finding the Fourth Proportional to 145,409.13, 218,114.03 and 44,208.07

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Solution

The fourth proportional to 145,409.13, 218,114.03 and 44,208.07 is: 66,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,409.13 : 218,114.03 = 44,208.07 : x
  2. Step 2: Convert to fraction form
    145,409.13/218,114.03 = 44,208.07/x
  3. Step 3: Cross multiply
    145,409.13x = 218,114.03 × 44,208.07
  4. Step 4: Simplify right side
    145,409.13x = 9,642,399,871.46
  5. Step 5: Solve for x
    x = 9,642,399,871.46/145,409.13
  6. Step 6: Final answer
    x = 66,312.20

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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.