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Finding the Fourth Proportional to 342,316.19, 472,360.01 and 189,330.08

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Solution

The fourth proportional to 342,316.19, 472,360.01 and 189,330.08 is: 261,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,316.19 : 472,360.01 = 189,330.08 : x
  2. Step 2: Convert to fraction form
    342,316.19/472,360.01 = 189,330.08/x
  3. Step 3: Cross multiply
    342,316.19x = 472,360.01 × 189,330.08
  4. Step 4: Simplify right side
    342,316.19x = 89,431,955,173.65
  5. Step 5: Solve for x
    x = 89,431,955,173.65/342,316.19
  6. Step 6: Final answer
    x = 261,255.40

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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.