Home / 218,302.02-301,256.28-122,808.69

Finding the Fourth Proportional to 218,302.02, 301,256.28 and 122,808.69

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Solution

The fourth proportional to 218,302.02, 301,256.28 and 122,808.69 is: 169,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,302.02 : 301,256.28 = 122,808.69 : x
  2. Step 2: Convert to fraction form
    218,302.02/301,256.28 = 122,808.69/x
  3. Step 3: Cross multiply
    218,302.02x = 301,256.28 × 122,808.69
  4. Step 4: Simplify right side
    218,302.02x = 36,996,889,101.07
  5. Step 5: Solve for x
    x = 36,996,889,101.07/218,302.02
  6. Step 6: Final answer
    x = 169,475.71

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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.