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Finding the Fourth Proportional to 376,851.16, 520,030.14 and 215,707.48

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Solution

The fourth proportional to 376,851.16, 520,030.14 and 215,707.48 is: 297,662.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,851.16 : 520,030.14 = 215,707.48 : x
  2. Step 2: Convert to fraction form
    376,851.16/520,030.14 = 215,707.48/x
  3. Step 3: Cross multiply
    376,851.16x = 520,030.14 × 215,707.48
  4. Step 4: Simplify right side
    376,851.16x = 112,174,391,023.45
  5. Step 5: Solve for x
    x = 112,174,391,023.45/376,851.16
  6. Step 6: Final answer
    x = 297,662.32

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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.