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Finding the Fourth Proportional to 518,015.25, 777,066.89 and 144,038.25

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Solution

The fourth proportional to 518,015.25, 777,066.89 and 144,038.25 is: 216,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,015.25 : 777,066.89 = 144,038.25 : x
  2. Step 2: Convert to fraction form
    518,015.25/777,066.89 = 144,038.25/x
  3. Step 3: Cross multiply
    518,015.25x = 777,066.89 × 144,038.25
  4. Step 4: Simplify right side
    518,015.25x = 111,927,354,248.35
  5. Step 5: Solve for x
    x = 111,927,354,248.35/518,015.25
  6. Step 6: Final answer
    x = 216,069.61

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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.