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Finding the Fourth Proportional to 286,378.74, 429,403.50 and 118,015.30

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Solution

The fourth proportional to 286,378.74, 429,403.50 and 118,015.30 is: 176,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,378.74 : 429,403.50 = 118,015.30 : x
  2. Step 2: Convert to fraction form
    286,378.74/429,403.50 = 118,015.30/x
  3. Step 3: Cross multiply
    286,378.74x = 429,403.50 × 118,015.30
  4. Step 4: Simplify right side
    286,378.74x = 50,676,182,873.55
  5. Step 5: Solve for x
    x = 50,676,182,873.55/286,378.74
  6. Step 6: Final answer
    x = 176,955.12

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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.