Home / 311,730.02-430,187.32-168,490.06

Finding the Fourth Proportional to 311,730.02, 430,187.32 and 168,490.06

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Solution

The fourth proportional to 311,730.02, 430,187.32 and 168,490.06 is: 232,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,730.02 : 430,187.32 = 168,490.06 : x
  2. Step 2: Convert to fraction form
    311,730.02/430,187.32 = 168,490.06/x
  3. Step 3: Cross multiply
    311,730.02x = 430,187.32 × 168,490.06
  4. Step 4: Simplify right side
    311,730.02x = 72,482,287,358.04
  5. Step 5: Solve for x
    x = 72,482,287,358.04/311,730.02
  6. Step 6: Final answer
    x = 232,516.22

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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.