Home / 385,528.66-578,322.15-119,316.10

Finding the Fourth Proportional to 385,528.66, 578,322.15 and 119,316.10

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Solution

The fourth proportional to 385,528.66, 578,322.15 and 119,316.10 is: 178,983.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,528.66 : 578,322.15 = 119,316.10 : x
  2. Step 2: Convert to fraction form
    385,528.66/578,322.15 = 119,316.10/x
  3. Step 3: Cross multiply
    385,528.66x = 578,322.15 × 119,316.10
  4. Step 4: Simplify right side
    385,528.66x = 69,003,143,481.62
  5. Step 5: Solve for x
    x = 69,003,143,481.62/385,528.66
  6. Step 6: Final answer
    x = 178,983.17

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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.