Home / 218,923.98-302,114.64-123,430.02

Finding the Fourth Proportional to 218,923.98, 302,114.64 and 123,430.02

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Solution

The fourth proportional to 218,923.98, 302,114.64 and 123,430.02 is: 170,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,923.98 : 302,114.64 = 123,430.02 : x
  2. Step 2: Convert to fraction form
    218,923.98/302,114.64 = 123,430.02/x
  3. Step 3: Cross multiply
    218,923.98x = 302,114.64 × 123,430.02
  4. Step 4: Simplify right side
    218,923.98x = 37,290,016,057.49
  5. Step 5: Solve for x
    x = 37,290,016,057.49/218,923.98
  6. Step 6: Final answer
    x = 170,333.17

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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.