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Finding the Fourth Proportional to 555,280.65, 832,674.74 and 255,688.65

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Solution

The fourth proportional to 555,280.65, 832,674.74 and 255,688.65 is: 383,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,280.65 : 832,674.74 = 255,688.65 : x
  2. Step 2: Convert to fraction form
    555,280.65/832,674.74 = 255,688.65/x
  3. Step 3: Cross multiply
    555,280.65x = 832,674.74 × 255,688.65
  4. Step 4: Simplify right side
    555,280.65x = 212,905,478,881.26
  5. Step 5: Solve for x
    x = 212,905,478,881.26/555,280.65
  6. Step 6: Final answer
    x = 383,419.59

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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.