Home / 282,875.19-390,368.57-153,813.71

Finding the Fourth Proportional to 282,875.19, 390,368.57 and 153,813.71

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Solution

The fourth proportional to 282,875.19, 390,368.57 and 153,813.71 is: 212,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,875.19 : 390,368.57 = 153,813.71 : x
  2. Step 2: Convert to fraction form
    282,875.19/390,368.57 = 153,813.71/x
  3. Step 3: Cross multiply
    282,875.19x = 390,368.57 × 153,813.71
  4. Step 4: Simplify right side
    282,875.19x = 60,044,037,128.04
  5. Step 5: Solve for x
    x = 60,044,037,128.04/282,875.19
  6. Step 6: Final answer
    x = 212,263.36

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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.