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Finding the Fourth Proportional to 405,127.68, 607,574.40 and 155,750.40

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Solution

The fourth proportional to 405,127.68, 607,574.40 and 155,750.40 is: 233,580.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,127.68 : 607,574.40 = 155,750.40 : x
  2. Step 2: Convert to fraction form
    405,127.68/607,574.40 = 155,750.40/x
  3. Step 3: Cross multiply
    405,127.68x = 607,574.40 × 155,750.40
  4. Step 4: Simplify right side
    405,127.68x = 94,629,955,829.76
  5. Step 5: Solve for x
    x = 94,629,955,829.76/405,127.68
  6. Step 6: Final answer
    x = 233,580.57

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1.5x scale

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.