Home / 385,557.77-578,363.69-119,283.23

Finding the Fourth Proportional to 385,557.77, 578,363.69 and 119,283.23

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Solution

The fourth proportional to 385,557.77, 578,363.69 and 119,283.23 is: 178,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,557.77 : 578,363.69 = 119,283.23 : x
  2. Step 2: Convert to fraction form
    385,557.77/578,363.69 = 119,283.23/x
  3. Step 3: Cross multiply
    385,557.77x = 578,363.69 × 119,283.23
  4. Step 4: Simplify right side
    385,557.77x = 68,989,090,802.04
  5. Step 5: Solve for x
    x = 68,989,090,802.04/385,557.77
  6. Step 6: Final answer
    x = 178,933.21

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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.