Home / 349,715.10-523,363.05-209,574.30

Finding the Fourth Proportional to 349,715.10, 523,363.05 and 209,574.30

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Solution

The fourth proportional to 349,715.10, 523,363.05 and 209,574.30 is: 313,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,715.10 : 523,363.05 = 209,574.30 : x
  2. Step 2: Convert to fraction form
    349,715.10/523,363.05 = 209,574.30/x
  3. Step 3: Cross multiply
    349,715.10x = 523,363.05 × 209,574.30
  4. Step 4: Simplify right side
    349,715.10x = 109,683,444,849.62
  5. Step 5: Solve for x
    x = 109,683,444,849.62/349,715.10
  6. Step 6: Final answer
    x = 313,636.57

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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.