Home / 348,030.20-521,267.70-285,822.20

Finding the Fourth Proportional to 348,030.20, 521,267.70 and 285,822.20

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Solution

The fourth proportional to 348,030.20, 521,267.70 and 285,822.20 is: 428,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,030.20 : 521,267.70 = 285,822.20 : x
  2. Step 2: Convert to fraction form
    348,030.20/521,267.70 = 285,822.20/x
  3. Step 3: Cross multiply
    348,030.20x = 521,267.70 × 285,822.20
  4. Step 4: Simplify right side
    348,030.20x = 148,989,880,802.94
  5. Step 5: Solve for x
    x = 148,989,880,802.94/348,030.20
  6. Step 6: Final answer
    x = 428,094.69

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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.