Home / 514,172.18-771,077.64-154,235.72

Finding the Fourth Proportional to 514,172.18, 771,077.64 and 154,235.72

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Solution

The fourth proportional to 514,172.18, 771,077.64 and 154,235.72 is: 231,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,172.18 : 771,077.64 = 154,235.72 : x
  2. Step 2: Convert to fraction form
    514,172.18/771,077.64 = 154,235.72/x
  3. Step 3: Cross multiply
    514,172.18x = 771,077.64 × 154,235.72
  4. Step 4: Simplify right side
    514,172.18x = 118,927,714,981.30
  5. Step 5: Solve for x
    x = 118,927,714,981.30/514,172.18
  6. Step 6: Final answer
    x = 231,299.40

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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.