Home / 480,316.15-720,488.81-164,768.50

Finding the Fourth Proportional to 480,316.15, 720,488.81 and 164,768.50

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Solution

The fourth proportional to 480,316.15, 720,488.81 and 164,768.50 is: 247,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,316.15 : 720,488.81 = 164,768.50 : x
  2. Step 2: Convert to fraction form
    480,316.15/720,488.81 = 164,768.50/x
  3. Step 3: Cross multiply
    480,316.15x = 720,488.81 × 164,768.50
  4. Step 4: Simplify right side
    480,316.15x = 118,713,860,490.49
  5. Step 5: Solve for x
    x = 118,713,860,490.49/480,316.15
  6. Step 6: Final answer
    x = 247,157.75

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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.