Home / 385,724.05-578,678.45-160,959.45

Finding the Fourth Proportional to 385,724.05, 578,678.45 and 160,959.45

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Solution

The fourth proportional to 385,724.05, 578,678.45 and 160,959.45 is: 241,477.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,724.05 : 578,678.45 = 160,959.45 : x
  2. Step 2: Convert to fraction form
    385,724.05/578,678.45 = 160,959.45/x
  3. Step 3: Cross multiply
    385,724.05x = 578,678.45 × 160,959.45
  4. Step 4: Simplify right side
    385,724.05x = 93,143,765,038.85
  5. Step 5: Solve for x
    x = 93,143,765,038.85/385,724.05
  6. Step 6: Final answer
    x = 241,477.72

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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.