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Finding the Fourth Proportional to 261,153, 358,044.06 and 256,429.08

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Solution

The fourth proportional to 261,153, 358,044.06 and 256,429.08 is: 351,567.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,153 : 358,044.06 = 256,429.08 : x
  2. Step 2: Convert to fraction form
    261,153/358,044.06 = 256,429.08/x
  3. Step 3: Cross multiply
    261,153x = 358,044.06 × 256,429.08
  4. Step 4: Simplify right side
    261,153x = 91,812,908,905.26
  5. Step 5: Solve for x
    x = 91,812,908,905.26/261,153
  6. Step 6: Final answer
    x = 351,567.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.