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Finding the Fourth Proportional to 342,066.81, 472,220.52 and 214,812.57

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Solution

The fourth proportional to 342,066.81, 472,220.52 and 214,812.57 is: 296,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,066.81 : 472,220.52 = 214,812.57 : x
  2. Step 2: Convert to fraction form
    342,066.81/472,220.52 = 214,812.57/x
  3. Step 3: Cross multiply
    342,066.81x = 472,220.52 × 214,812.57
  4. Step 4: Simplify right side
    342,066.81x = 101,438,903,507.94
  5. Step 5: Solve for x
    x = 101,438,903,507.94/342,066.81
  6. Step 6: Final answer
    x = 296,547.05

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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.