Home / 311,728.02-430,184.56-168,488.06

Finding the Fourth Proportional to 311,728.02, 430,184.56 and 168,488.06

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Solution

The fourth proportional to 311,728.02, 430,184.56 and 168,488.06 is: 232,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,728.02 : 430,184.56 = 168,488.06 : x
  2. Step 2: Convert to fraction form
    311,728.02/430,184.56 = 168,488.06/x
  3. Step 3: Cross multiply
    311,728.02x = 430,184.56 × 168,488.06
  4. Step 4: Simplify right side
    311,728.02x = 72,480,961,956.35
  5. Step 5: Solve for x
    x = 72,480,961,956.35/311,728.02
  6. Step 6: Final answer
    x = 232,513.46

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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.