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Finding the Fourth Proportional to 371,083.42, 512,079.42 and 209,941.22

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Solution

The fourth proportional to 371,083.42, 512,079.42 and 209,941.22 is: 289,710.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,083.42 : 512,079.42 = 209,941.22 : x
  2. Step 2: Convert to fraction form
    371,083.42/512,079.42 = 209,941.22/x
  3. Step 3: Cross multiply
    371,083.42x = 512,079.42 × 209,941.22
  4. Step 4: Simplify right side
    371,083.42x = 107,506,578,171.69
  5. Step 5: Solve for x
    x = 107,506,578,171.69/371,083.42
  6. Step 6: Final answer
    x = 289,710.00

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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.