Home / 455,510.30-683,281.65-139,966.70

Finding the Fourth Proportional to 455,510.30, 683,281.65 and 139,966.70

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Solution

The fourth proportional to 455,510.30, 683,281.65 and 139,966.70 is: 209,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,510.30 : 683,281.65 = 139,966.70 : x
  2. Step 2: Convert to fraction form
    455,510.30/683,281.65 = 139,966.70/x
  3. Step 3: Cross multiply
    455,510.30x = 683,281.65 × 139,966.70
  4. Step 4: Simplify right side
    455,510.30x = 95,636,677,721.06
  5. Step 5: Solve for x
    x = 95,636,677,721.06/455,510.30
  6. Step 6: Final answer
    x = 209,955.03

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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.