Home / 257,259.32-355,030.53-155,283.16

Finding the Fourth Proportional to 257,259.32, 355,030.53 and 155,283.16

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Solution

The fourth proportional to 257,259.32, 355,030.53 and 155,283.16 is: 214,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,259.32 : 355,030.53 = 155,283.16 : x
  2. Step 2: Convert to fraction form
    257,259.32/355,030.53 = 155,283.16/x
  3. Step 3: Cross multiply
    257,259.32x = 355,030.53 × 155,283.16
  4. Step 4: Simplify right side
    257,259.32x = 55,130,261,124.99
  5. Step 5: Solve for x
    x = 55,130,261,124.99/257,259.32
  6. Step 6: Final answer
    x = 214,298.40

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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.