Home / 385,529.16-578,322.90-119,316.60

Finding the Fourth Proportional to 385,529.16, 578,322.90 and 119,316.60

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Solution

The fourth proportional to 385,529.16, 578,322.90 and 119,316.60 is: 178,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,529.16 : 578,322.90 = 119,316.60 : x
  2. Step 2: Convert to fraction form
    385,529.16/578,322.90 = 119,316.60/x
  3. Step 3: Cross multiply
    385,529.16x = 578,322.90 × 119,316.60
  4. Step 4: Simplify right side
    385,529.16x = 69,003,522,130.14
  5. Step 5: Solve for x
    x = 69,003,522,130.14/385,529.16
  6. Step 6: Final answer
    x = 178,983.92

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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.