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Finding the Fourth Proportional to 366,916.30, 550,374.45 and 260,628.10

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Solution

The fourth proportional to 366,916.30, 550,374.45 and 260,628.10 is: 390,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,916.30 : 550,374.45 = 260,628.10 : x
  2. Step 2: Convert to fraction form
    366,916.30/550,374.45 = 260,628.10/x
  3. Step 3: Cross multiply
    366,916.30x = 550,374.45 × 260,628.10
  4. Step 4: Simplify right side
    366,916.30x = 143,443,047,192.05
  5. Step 5: Solve for x
    x = 143,443,047,192.05/366,916.30
  6. Step 6: Final answer
    x = 390,942.15

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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.