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Finding the Fourth Proportional to 384,312.48, 530,507.54 and 248,357.62

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Solution

The fourth proportional to 384,312.48, 530,507.54 and 248,357.62 is: 342,834.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,312.48 : 530,507.54 = 248,357.62 : x
  2. Step 2: Convert to fraction form
    384,312.48/530,507.54 = 248,357.62/x
  3. Step 3: Cross multiply
    384,312.48x = 530,507.54 × 248,357.62
  4. Step 4: Simplify right side
    384,312.48x = 131,755,590,026.46
  5. Step 5: Solve for x
    x = 131,755,590,026.46/384,312.48
  6. Step 6: Final answer
    x = 342,834.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.