Home / 405,191.10-607,415.13-155,685.18

Finding the Fourth Proportional to 405,191.10, 607,415.13 and 155,685.18

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Solution

The fourth proportional to 405,191.10, 607,415.13 and 155,685.18 is: 233,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,191.10 : 607,415.13 = 155,685.18 : x
  2. Step 2: Convert to fraction form
    405,191.10/607,415.13 = 155,685.18/x
  3. Step 3: Cross multiply
    405,191.10x = 607,415.13 × 155,685.18
  4. Step 4: Simplify right side
    405,191.10x = 94,565,533,848.77
  5. Step 5: Solve for x
    x = 94,565,533,848.77/405,191.10
  6. Step 6: Final answer
    x = 233,385.02

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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.