Home / 288,263.81-397,807.02-159,205.50

Finding the Fourth Proportional to 288,263.81, 397,807.02 and 159,205.50

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Solution

The fourth proportional to 288,263.81, 397,807.02 and 159,205.50 is: 219,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,263.81 : 397,807.02 = 159,205.50 : x
  2. Step 2: Convert to fraction form
    288,263.81/397,807.02 = 159,205.50/x
  3. Step 3: Cross multiply
    288,263.81x = 397,807.02 × 159,205.50
  4. Step 4: Simplify right side
    288,263.81x = 63,333,065,522.61
  5. Step 5: Solve for x
    x = 63,333,065,522.61/288,263.81
  6. Step 6: Final answer
    x = 219,705.22

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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.