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Finding the Fourth Proportional to 492,364.76, 738,547.36 and 155,439.58

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Solution

The fourth proportional to 492,364.76, 738,547.36 and 155,439.58 is: 233,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,364.76 : 738,547.36 = 155,439.58 : x
  2. Step 2: Convert to fraction form
    492,364.76/738,547.36 = 155,439.58/x
  3. Step 3: Cross multiply
    492,364.76x = 738,547.36 × 155,439.58
  4. Step 4: Simplify right side
    492,364.76x = 114,799,491,448.51
  5. Step 5: Solve for x
    x = 114,799,491,448.51/492,364.76
  6. Step 6: Final answer
    x = 233,159.44

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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.