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Finding the Fourth Proportional to 283,019.82, 390,746.61 and 175,703.73

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Solution

The fourth proportional to 283,019.82, 390,746.61 and 175,703.73 is: 242,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,019.82 : 390,746.61 = 175,703.73 : x
  2. Step 2: Convert to fraction form
    283,019.82/390,746.61 = 175,703.73/x
  3. Step 3: Cross multiply
    283,019.82x = 390,746.61 × 175,703.73
  4. Step 4: Simplify right side
    283,019.82x = 68,655,636,861.86
  5. Step 5: Solve for x
    x = 68,655,636,861.86/283,019.82
  6. Step 6: Final answer
    x = 242,582.43

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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.