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Finding the Fourth Proportional to 374,430.30, 561,645.45 and 121,710.30

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Solution

The fourth proportional to 374,430.30, 561,645.45 and 121,710.30 is: 182,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,430.30 : 561,645.45 = 121,710.30 : x
  2. Step 2: Convert to fraction form
    374,430.30/561,645.45 = 121,710.30/x
  3. Step 3: Cross multiply
    374,430.30x = 561,645.45 × 121,710.30
  4. Step 4: Simplify right side
    374,430.30x = 68,358,036,213.14
  5. Step 5: Solve for x
    x = 68,358,036,213.14/374,430.30
  6. Step 6: Final answer
    x = 182,565.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.