Home / 311,722.02-430,176.28-168,482.07

Finding the Fourth Proportional to 311,722.02, 430,176.28 and 168,482.07

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Solution

The fourth proportional to 311,722.02, 430,176.28 and 168,482.07 is: 232,505.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,722.02 : 430,176.28 = 168,482.07 : x
  2. Step 2: Convert to fraction form
    311,722.02/430,176.28 = 168,482.07/x
  3. Step 3: Cross multiply
    311,722.02x = 430,176.28 × 168,482.07
  4. Step 4: Simplify right side
    311,722.02x = 72,476,988,320.81
  5. Step 5: Solve for x
    x = 72,476,988,320.81/311,722.02
  6. Step 6: Final answer
    x = 232,505.19

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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.