Home / 282,627.77-390,029.40-155,303.37

Finding the Fourth Proportional to 282,627.77, 390,029.40 and 155,303.37

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Solution

The fourth proportional to 282,627.77, 390,029.40 and 155,303.37 is: 214,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,627.77 : 390,029.40 = 155,303.37 : x
  2. Step 2: Convert to fraction form
    282,627.77/390,029.40 = 155,303.37/x
  3. Step 3: Cross multiply
    282,627.77x = 390,029.40 × 155,303.37
  4. Step 4: Simplify right side
    282,627.77x = 60,572,880,219.08
  5. Step 5: Solve for x
    x = 60,572,880,219.08/282,627.77
  6. Step 6: Final answer
    x = 214,320.35

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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.