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Finding the Fourth Proportional to 384,696.30, 577,044.45 and 100,386.30

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Solution

The fourth proportional to 384,696.30, 577,044.45 and 100,386.30 is: 150,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,696.30 : 577,044.45 = 100,386.30 : x
  2. Step 2: Convert to fraction form
    384,696.30/577,044.45 = 100,386.30/x
  3. Step 3: Cross multiply
    384,696.30x = 577,044.45 × 100,386.30
  4. Step 4: Simplify right side
    384,696.30x = 57,927,357,271.04
  5. Step 5: Solve for x
    x = 57,927,357,271.04/384,696.30
  6. Step 6: Final answer
    x = 150,579.45

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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.