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Finding the Fourth Proportional to 518,316.90, 777,424.32 and 181,295.34

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Solution

The fourth proportional to 518,316.90, 777,424.32 and 181,295.34 is: 271,925.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,316.90 : 777,424.32 = 181,295.34 : x
  2. Step 2: Convert to fraction form
    518,316.90/777,424.32 = 181,295.34/x
  3. Step 3: Cross multiply
    518,316.90x = 777,424.32 × 181,295.34
  4. Step 4: Simplify right side
    518,316.90x = 140,943,406,418.67
  5. Step 5: Solve for x
    x = 140,943,406,418.67/518,316.90
  6. Step 6: Final answer
    x = 271,925.16

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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.