Home / 355,688.12-533,681.94-155,905.40

Finding the Fourth Proportional to 355,688.12, 533,681.94 and 155,905.40

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Solution

The fourth proportional to 355,688.12, 533,681.94 and 155,905.40 is: 233,923.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,688.12 : 533,681.94 = 155,905.40 : x
  2. Step 2: Convert to fraction form
    355,688.12/533,681.94 = 155,905.40/x
  3. Step 3: Cross multiply
    355,688.12x = 533,681.94 × 155,905.40
  4. Step 4: Simplify right side
    355,688.12x = 83,203,896,328.48
  5. Step 5: Solve for x
    x = 83,203,896,328.48/355,688.12
  6. Step 6: Final answer
    x = 233,923.74

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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.