Home / 385,730.81-578,688.55-160,966.19

Finding the Fourth Proportional to 385,730.81, 578,688.55 and 160,966.19

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Solution

The fourth proportional to 385,730.81, 578,688.55 and 160,966.19 is: 241,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,730.81 : 578,688.55 = 160,966.19 : x
  2. Step 2: Convert to fraction form
    385,730.81/578,688.55 = 160,966.19/x
  3. Step 3: Cross multiply
    385,730.81x = 578,688.55 × 160,966.19
  4. Step 4: Simplify right side
    385,730.81x = 93,149,289,784.74
  5. Step 5: Solve for x
    x = 93,149,289,784.74/385,730.81
  6. Step 6: Final answer
    x = 241,487.81

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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.