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Finding the Fourth Proportional to 255,854.62, 353,079.71 and 141,130.67

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Solution

The fourth proportional to 255,854.62, 353,079.71 and 141,130.67 is: 194,760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,854.62 : 353,079.71 = 141,130.67 : x
  2. Step 2: Convert to fraction form
    255,854.62/353,079.71 = 141,130.67/x
  3. Step 3: Cross multiply
    255,854.62x = 353,079.71 × 141,130.67
  4. Step 4: Simplify right side
    255,854.62x = 49,830,376,565.26
  5. Step 5: Solve for x
    x = 49,830,376,565.26/255,854.62
  6. Step 6: Final answer
    x = 194,760.51

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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.