Home / 293,240.72-438,041.63-212,638.84

Finding the Fourth Proportional to 293,240.72, 438,041.63 and 212,638.84

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Solution

The fourth proportional to 293,240.72, 438,041.63 and 212,638.84 is: 317,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,240.72 : 438,041.63 = 212,638.84 : x
  2. Step 2: Convert to fraction form
    293,240.72/438,041.63 = 212,638.84/x
  3. Step 3: Cross multiply
    293,240.72x = 438,041.63 × 212,638.84
  4. Step 4: Simplify right side
    293,240.72x = 93,144,663,511.40
  5. Step 5: Solve for x
    x = 93,144,663,511.40/293,240.72
  6. Step 6: Final answer
    x = 317,638.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.